Stove-radiator



w (No Model.) QSheets-Sheet 1.

. T. THATGHER.

STOVE RADIATOR.

No. 424,037. Patented Mar 25, 1890.

(No Model.) 4 Sheets-Sheet 2.

- T. THATOHER.

STOVE RADIATOR No; 424.037. Patented Mar. '25. 1890.

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(No-Model.) 4 Sheets-Sheet 3.

T. THATOHER.

STOVE RADIATOR. No. 424,037. Patented Mar. 25, 1890.

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(No Model.) 4 Sheefis-Shees 4, T. THATGHER. STOVE RADIATOR.

No. 424,037. Patented Mar. 25, 1890.-

part or in full.

UNITED STATES PATENT OFFICE.

THOMAS THATCHER, OF ELIZABETH, NEW JERSEY.

STOVE- RADIATO R.

SPECIFICATION forming part of Letters Patent No. 424,037, dated March25, 1890.

Application filed November 12, 1889. Serial No. 330,060. (No model.)

To aZZ whom it may concern.

Be it known that I, THOMAS THATCHER, a citizen of the United States, anda resident of Elizabeth, county of Union, and State of New Jersey, haveinvented certain new and useful Improvements in Stove-Radiators, ofwhich the followingis a specification.

My present invention relates to the mechanical construction of a stovefor heating rooms and similar purposes where it is desired to maintain aconstant temperature approximately.

The object of the invention is to obtain the maximum amount of heat fromany given quantity of coal or wood or whatever fuel is employed in thestove.

The stove in all its details is described by reference to theaccompanying drawings, in which Figure 1 is a front elevation of thecomplete device. The cross-lines formed of alternate long and shortdashes indicate the location of cross-sections hereinafter named. Fig. 2is a front elevation of the device with a portion of the lower partbroken away. The perforated casing around the lower part of Fig. 1 isremoved entirely in Fig. 2. Fig. 3 is a vertical section of the device,the section being taken through the central axis of the stove andsubstantially parallel to the sheet of paper upon which the figure isdrawn in Figs. 1 and 2. Fig. 4' is a sectional view of the upper part ofthe device shown inv Figs. '1, 2, and 3. The section is vertical andshows a part of the flue adapted to connect to the stove-pipe. Fig. 5,isa plan of the stove, the top cover being partially removed from thefeed-pipe. Fig. 6 shows the horizontal section at the line X in Fig. 1.Fig.7 shows the horizontal section at the line Y in Fig. 1. Fig. 8 is aplan of the flue-chamber at the top of the stove removed. Thisflue-chamber is that part seen in section in Fig. 4. Figs. 9 and 10 showto different views of the coal-feed regulator, seen also in Figs. 1, 2,3, 5, 6, and 7 in The black circular areas seen in Fig. 7 indicate thatone is looking downward into the radiator-pipes hereinafter men tionedand described.

The complete device embodying myinvention consists of the combination ofan ash-pit a at the lower part of the device and supported upon suitablelegs 1) and supporting the fire-pot c, which is surrounded by theperforated plate d at such a distance as to allow the circulation of airfrom the outside room or space to the surface of the fire-pot and outagain into the room. The fire-pot in turn supports or carriesaperforated roof or cover 6, which forms the top of the fire-pot. Intothese perforations are inserted pipes, which are lettered f, and whichproject vertically upward and open in a flue-chamber h, connecting bythe pipe '5 with a suitable stovepipe or chimney. The central pipe ormagazine g is much larger than the other tubes or pipes and is ofsufficient size to admit of coal and serve as a magazine for containinga reserve supply of fuel. There is also an opening 19 in the upperportion of the magazine g, thereby forming the passage-way from saidmagazine to the flue t. The magazine is pr0- Vided with a cover j, whichis removable, so that coal may be stored in the magazine. This feed-pipeopens into the fire-pot and into the flue-piped and is provided'with acover at its upper end, the said cover being removable.

The tubes f form a communication from the fire-pot to the flue-chamberh, so that the heated gases may pass through said pipes into thechimney, imparting most of their heat to said pipes. The outsideatmosphere becomes heated by convection and radiation while in contactwith and in the neighborhood of said pipes, as well as when circulatingaround the feed-pipe g, whose outer surface is exposed 'to theatmosphere of the room containing the stove. The outside surface of thefire-pot also heats the air which comes in contact with it. Theperforated plate (Z be-' comes heated by radiation and conduction fromthe fire-pot, and also heats the atmosphere in the manner indicated withreference to the tube or pipes f. V

The valve m serves to regulate the fall of the coal. It consists of aremovable rotary plate having a handle on on the outside of the stove,the plate being located across the pipe g. \Vhen the plate WZ'lShorizontal, the

coal will feed slowly,-while if it is vertical the coal will feedfaster. If the plate is entirely removed by withdrawing it through theslot at inthe side of the pipe g the coal will feed with its maximumspeed. The tubes f are arranged in concentric circles around the pipe 9,thereby obtaining a great number in a comparatively small space. Theyare vertical, so that the draft of airand combustible and consumed gasesare not in any way hindered in their passage from the fire-pot to thechimney. The chamber 72/, into which the pipes f communicate, is in theshape of a cylindrical ring, theinclosed space of the ring beingoccupied by the pipe 7.

This stove is useful especially for domestic purposes. It occupiescomparatively little floor-space and is economical, as with but a lowfire practically all of the heat is communicated to the room from thehot gases before they enter the pipe II.

The fire-pot c is larger at the top, measured horizontally, than at thebottom, in the nature of an inverted truncated cone, so that while thecoal is located in the lower portion more than in the upper portion theheated gases passing from the burning coal may be allowed free accessthrough the pipes f, and so that the horizontal plate 6 may have greateroutside heating-surface to aircoming in contact with the same. Themagazine g projects a sufficient distance-a few inchesinto the fire-potto prevent coal from choking up the pipes f. The plate or cover 6 isnaturally very hot and serves a useful purpose in heating the outsideair which circulates over the same. The perforated plate (Z and pipes fcontribute to the function of the plate 6 and sides of fire-pot c bypreventing cold air during opening of doors on very cold days fromchilling and cracking the fire-pot c. The ai 1' must first becomeconsiderably heated by coming into contact with the said pipes and plate(Z, which are at a much lower temperature. The plate (I serves as aprotector and radiator. The plate projects beyond the top of thefire-pot, and this projection 2' connects with the plate (1, therebyleaving suliicicnt air-space between the fire-pot and plate (I. Asimilar horizontal projection r around the lower part of the fire-pot isprovided and joins the lower edge of the plate (Z.

I claim as my invention- 1. In a stove, the combination of a fire-pot cof larger horizontal diameter at the top than at the bottom and providedwith alower projection r, a horizontal perforated cover or top 2 to saidfire-pot and projecting beyond the top of said fire-pot, a cylindricalperforated lire-pot protector and radiator (l, surrounding the sides ofthe fire-pot in such a manner as to leave an air-space between saidfire-pot and said. protector and joined to the projecting part of saidplate a, a magazine g for containing a reserve supply of fuel,projecting downward beyond the plate 6, for the purpose set forth,rectilinear or vertical radiating-tubes f, passing into the perforationsof the plate 6 and communicating with the said fire-pot, a cylindricalring h, with which the opposite ends of the tubes f and magazine gcommunicate, and through which said magazine passes, and a flue-pipe 2',communicating with said ring, the said magazine being provided with acover at its upper end, and with a coal-feed regulator at or near itsopposite end.

2. In a stove, the combination of a fire-pot c of larger horizontaldiameter at the top than at the bottom and provided with a lowerprojection 9", a horizontal perforated cover or top 6 to said fire-potand projecting beyond the top of said tire-pot, a cylindrical perforatedfire-pot protector and radiator (1, surrounding the sides of thefire-pot in such a manner as to leave an air-space between said fire-potand said protector and joined to the projecting part of said plate a, amagazine g for containing a reserve supply of fuel, prej ecting downwardbeyond the plate a, for the purpose set forth, rectilinear or verticalradiating-tubes f, passing into the perforations of the plate 6, andcommunicating with the said fire-pot, and a cylindrical ring 7b withwhich the opposite ends of the tubes f and magazine 9 communicate, andthrough which said magazine passes.

In a stove, the combination, with the fire-pot thereof, of perforatedplates 6 and d, surrounding jointly the sides and top of the firepot,some of the perforations communieating with the exterior air only, andsome communicating both with the said fire-pot and with the flue orchimney.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 4th day of November, 1889.

THOMAS Tl-IATOl-IER.

Witnesses:

EDWARD P. THOMPSON, E. G. DUVALL, Jr.

